Detailed overview of ambient air pollution valuis from individual stations

Year: 2000
Pollutant:NOx-nitrogen oxides(oxides of nitrogen)
Station:1140 - Beroun
Code:CZBECMBER
Institution:Czech Hydrometeorological Institute
Region:Stredocesky
District:Beroun
IHd: 100
Measure method:chemiluminescence
Unit:ug/m^3

Average daily concentrations

Day/
Month

12345678910111213141516171819202122232425262728293031XMaxN
1 55 125 131 68 134 120 139 146 112 164 200 141 64 84 86 55 49 37 38 38 42 104 78 ~ ~ ~ ~ ~ ~ ~ ~ 96.01 200.44 23.00
2 ~ ~ ~ 35 33 154 59 24 12 141 110 67 26 108 90 43 43 94 65 22 127 140 121 116 31 98 180 159 58 ~ ~ 82.96 180.35 26.00
3 41 25 32 8.98 52 97 26 19 12 73 18 83 130 52 20 35 38 60 58 100 100 124 149 165 101 42 33 59 ~ 65 67 62.80 164.85 30.00
4 64 105 120 117 44 63 21 43 103 95 90 107 63 87 42 129 57 106 61 ~ 97 57 37 31 89 119 58 42 59 48 ~ 74.23 128.78 29.00
5 61 106 105 129 111 61 46 77 99 110 ~ 52 48 97 121 ~ 83 49 47 16 45 33 103 99 53 74 18 33 59 32 62 70.01 128.69 29.00
6 109 99 58 65 58 36 62 85 96 44 30 48 58 57 34 26 28 87 110 115 126 43 69 23 35 12 57 64 77 59 ~ 62.29 125.80 30.00
7 40 58 58 48 16 53 69 19 32 65 76 41 29 59 15 27 61 61 18 54 41 32 95 83 ~ 79 61 44 12 54 85 49.51 95.49 30.00
8 119 70 51 63 51 72 52 110 94 107 81 53 113 126 108 80 92 91 52 78 29 60 107 91 61 43 101 90 106 112 87 82.34 126.33 31.00
9 70 20 18 62 101 91 76 94 71 99 116 168 103 90 113 26 48 92 99 63 67 114 57 87 179 168 113 119 136 91 ~ 91.68 178.79 30.00
10 39 97 139 140 78 40 29 66 136 129 118 155 245 111 63 194 97 115 145 128 126 137 89 146 103 65 34 86 99 259 101 113.23 259.32 31.00
11 173 252 188 56 179 86 210 337 293 187 150 154 265 123 227 227 104 139 214 227 227 288 339 135 83 41 145 316 193 120 ~ 189.25 338.77 30.00
12 102 72 140 167 94 101 110 206 196 118 105 130 37 67 20 11 108 188 172 242 161 165 147 126 74 114 89 99 298 141 45 124.07 297.89 31.00

Quarterly and annual absolute and relative frequency of average daily concentrations
partial and total air pollution indexes according to classes of IHd multiples

Quarter

concentration classes in IHd multiples

total ind.

part of it in IHd multiples

max.
date

<=1/3 <=2/3 <=1.0 <=1.5 <=2.0 <=3.0 <=4.0 > 1/32/31.01.52.0 3.04.0

concentration classes in measurement units

part of above IHd multiples in meas. units

0- 33 34- 67 68- 100 101- 150 151- 200 201- 300 301- 400 over 400 33 67 100 150 200 300 400
ABS. 15 25 11 22 5 1 0 0 79 64 39 28 6 1 0 0 200
REL. 18.9 31.6 13.9 27.8 6.3 1.2 0.0 0.0 100.0 81.0 49.4 35.4 7.6 1.3 0.0 0.011.1
ID 18 31 13 55 31 31 0 0 183
ABS. 12 40 17 19 0 0 0 0 88 76 36 19 0 0 0 0 129
REL. 13.6 45.4 19.3 21.5 0.0 0.0 0.0 0.0 100.0 86.4 40.9 21.6 0.0 0.0 0.0 0.0 16.4
ID 13 45 19 43 0 0 0 0 121
ABS. 13 28 29 18 3 0 0 0 91 78 50 21 3 0 0 0 179
REL. 14.2 30.7 31.8 19.7 3.2 0.0 0.0 0.0100.0 85.7 54.9 23.1 3.3 0.0 0.0 0.0 25.9
ID 14 30 31 39 16 0 0 0 132
ABS. 3 10 14 33 14 15 3 0 92 89 79 65 32 18 3 0 339
REL 3.2 10.8 15.2 35.8 15.2 16.3 3.2 0.0100.0 96.7 85.9 70.7 34.8 19.6 3.3 0.023.11
ID 3 10 15 71 76 407 407 0 992
Year
ABS. 43 103 71 92 22 16 3 0 350 307 204 133 41 19 3 0 339
REL. 12.2 29.4 20.2 26.2 6.2 4.5 0.8 0.0100.0 87.7 58.3 38.0 11.7 5.4 0.9 0.023.11
ID 12 29 20 52 31 114 107 0 367

Note:

1 frequency < 60 per quarter, or < 240 per annum
2 frequency < 30 per quarter, or < 120 per annum